%0 Journal Article %A Ozgur Yilmaz %A Evrim Yilmaz %T Supplemental oxygen in COVID-19: a friend or foe? %D 2020 %R 10.7861/clinmed.Let.20.5.3 %J Clinical Medicine %P e137-e137 %V 20 %N 5 %U https://www.rcpjournals.org/content/clinmedicine/20/5/e137.1.full.pdf